noun
offside trap
A defensive tactic in soccer where defenders move forward in unison to catch an opponent offside.
相手の攻撃を防ぐために、ディフェンスラインがオフサイドトラップを仕掛けた。
To stop the opponent's attack, the defensive line set an offside trap.
Standard katakana spelling for the soccer term.
Variant with an interpunct, sometimes used for clarity.
オフサイド is the offside rule itself, while オフサイドトラップ is the deliberate tactic to force an offside.
Borrowed from English 'offside trap'.